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Trade and Variety in a Model of Endogenous Product Differentiation

  • Lorz Oliver

    ()

    (RWTH Aachen University)

  • Wrede Matthias

    ()

    (University of Marburg)

This paper sets up a model of endogenous product differentiation to analyze the variety effects of international trade. In our model multi-product firms decide not only about the number of varieties they will supply but also about the degree of horizontal differentiation between these varieties. Firms can raise the degree of differentiation by investing variety-specific fixed costs. In this setting, we analyze how trade integration, i.e. an increase in market size, influences the number of firms in the market, the number of product varieties supplied by each firm, and the degree of differentiation between these varieties.

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Article provided by De Gruyter in its journal The B.E. Journal of Economic Analysis & Policy.

Volume (Year): 9 (2009)
Issue (Month): 1 (November)
Pages: 1-14

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Handle: RePEc:bpj:bejeap:v:9:y:2009:i:1:n:52
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  1. Volker Nocke & Stephen Yeaple, 2006. "Globalization and Endogenous Firm Scope," PIER Working Paper Archive 06-015, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  2. Irene Brambilla, 2006. "Multinationals, Technology, and the Introduction of Varieties of Goods," NBER Working Papers 12217, National Bureau of Economic Research, Inc.
  3. Peter Neary & Carsten Eckel, 2006. "Multi-Product Firms and Flexible Manufacturing in the Global Economy," Economics Series Working Papers 292, University of Oxford, Department of Economics.
  4. Marc J. Melitz & Gianmarco I.P. Ottaviano, 2005. "Market Size, Trade, and Productivity," Development Working Papers 201, Centro Studi Luca d\'Agliano, University of Milano.
  5. Allanson, Paul & Montagna, Catia, 2005. "Multiproduct firms and market structure: An explorative application to the product life cycle," International Journal of Industrial Organization, Elsevier, vol. 23(7-8), pages 587-597, September.
  6. Robert Feenstra & Hong Ma, 2007. "Optimal Choice of Product Scope for Multiproduct Firms under Monopolistic Competition," NBER Working Papers 13703, National Bureau of Economic Research, Inc.
  7. John Baldwin & Wulong Gu, 2009. "The Impact of Trade on Plant Scale, Production-Run Length and Diversification," NBER Chapters, in: Producer Dynamics: New Evidence from Micro Data, pages 557-592 National Bureau of Economic Research, Inc.
  8. Eckel, Carsten, 2009. "Endogenous sunk costs, flexible manufacturing and the productivity effects of international trade," Munich Reprints in Economics 20532, University of Munich, Department of Economics.
  9. Andrew B. Bernard & Stephen J. Redding & Peter K. Schott, 2006. "Multi-Product Firms and Trade Liberalization," NBER Working Papers 12782, National Bureau of Economic Research, Inc.
  10. Eckel, Carsten, 2006. "Trade and diversity: Is there a case for ’cultural protectionism?’," Munich Reprints in Economics 20535, University of Munich, Department of Economics.
  11. Hélène ERKEL-ROUSSE, 1997. "Endogenous Differentiation Strategies, Comparative Advantage and the Volume of Trade," Annales d'Economie et de Statistique, ENSAE, issue 47, pages 121-149.
  12. Simon P. Anderson & André de Palma, 2003. "Market Performance With Multiproduct Firms," Virginia Economics Online Papers 357, University of Virginia, Department of Economics.
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